Yoshiteru has planned the ultimate revenge against her former classmate Yagyuu Sekishuusai.  But Sekishuusai seems to be one step ahead, until Nobunaga appears.
So you were getting back 
at her, Yoshiteru-sama!
¡Pero si usted también la contraatacaba!
¡Pero si tú también le respondías!
Então você estava só se vingando dela, Yoshiteru!